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Finding the Fourth Proportional to 587,462.15, 810,963.34 and 369,990.40

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Solution

The fourth proportional to 587,462.15, 810,963.34 and 369,990.40 is: 510,754.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,462.15 : 810,963.34 = 369,990.40 : x
  2. Step 2: Convert to fraction form
    587,462.15/810,963.34 = 369,990.40/x
  3. Step 3: Cross multiply
    587,462.15x = 810,963.34 × 369,990.40
  4. Step 4: Simplify right side
    587,462.15x = 300,048,648,701.98
  5. Step 5: Solve for x
    x = 300,048,648,701.98/587,462.15
  6. Step 6: Final answer
    x = 510,754.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.